Kevin Pietersen scored a thrilling and controversial century to put England in
the driving seat of the second Test against Sri Lanka, with the hosts
complaining to the umpire and the England batsman warned over the use of the
shot.

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Do as I do: umpire Asad Rauf takes amoment at drinks to show everyone how it's donePhoto: REUTERS

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Have a word: Rauf warns Kevin Pietersen over his 'switch-hitting' tacticsPhoto: ACTION IMAGES

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Words of wisdom: Pietersen and Rauf chew the fatPhoto: ACTION IMAGES

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Sweeper system: Pietersen used the sweep expertly to build up his inningsPhoto: AP

Pietersen was at his scintillating best as he reached his 20th Test century in 109 balls, Alastair Cook having earlier fallen six short of the same landmark.

England were eventually all out for 460, a first innings lead of 185 for which they were heavily indebted to Pietersen's contribution of 151.

But his excellence aside, Pietersen's tactics were causing plenty of consternation among the Sri Lankan side, who complained about him repeatedly altering his stance during the bowler's run-in.

Match referee Javagal Srinath confirmed that Pietersen had been issued a formal warning over his use of the contentious shot, and if he or any of his team-mates do the same again during the match, Sri Lanka will be awarded five runs

It is an issue Pietersen has confronted before with his infamous 'switch-hit' and he did not allow the warning from Asad Rauf, who appeared to use a drinks break to give a demonstration of what is and isn't permitted, to ruffle him.

In fact, he reached three figures with a premeditated reverse sweep and celebrated in ecstatic fashion.

Asked about what went on between himself and the umpire a terse Pietersen moved to dismiss the issue, saying: "There was no altercation. I was just finding out what it was and he was telling me what it was. No drama."